1 files changed, 2 insertions, 1 deletions
diff --git a/git/exc.py b/git/exc.py
index 6c9cde34..47215c21 100644
--- a/git/exc.py
+++ b/git/exc.py
@@ -34,7 +34,8 @@ class CommandError(UnicodeMixin, Exception):
     _msg = u"Cmd('%s') failed%s"
 
     def __init__(self, command, status=None, stderr=None, stdout=None):
-        assert isinstance(command, (tuple, list)), command
+        if not isinstance(command, (tuple, list)):
+            command = command.split()
         self.command = command
         self.status = status
         if status: